Google Cloud Transfer Service

Google Cloud Storage Transfer Service enables seamless data movement across object and file storage systems, including transfers from Amazon S3, Azure Blob Storage, or Cloud Storage to Cloud Storage, and from on-premises storage to Cloud Storage. It is optimized for large-scale transfers involving terabytes or petabytes of data.

Google Cloud Transfer Service publishes 3 APIs on the APIs.io network: AgentPools API, TransferJobs API, and TransferOperations API. Tagged areas include Azure, Cloud Storage, Data Transfer, Migration, and S3.

The Google Cloud Transfer Service catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Google Cloud Transfer Service’s developer surface includes authentication, getting-started guide, pricing, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

50.9/100 developing ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

3 APIs

AzureCloud StorageData TransferMigrationS3Storage

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 50.9/100 · developing

Contract Quality 17.0 / 25

Developer Ergonomics 4.8 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 4.8 / 13

Governance 7.0 / 12

Discoverability 7.4 / 10

Agent readiness — 31/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/google-cloud-transfer-service: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Google Cloud Transfer Service Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Scopes 1

OAuth scopes governing access to this provider's APIs.

Google Cloud Transfer Service Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 1

The organization behind the API

Blog

Blog

Source (apis.yml)

name: Google Cloud Transfer Service
description: Google Cloud Storage Transfer Service enables seamless data movement across object and file storage systems,
  including transfers from Amazon S3, Azure Blob Storage, or Cloud Storage to Cloud Storage, and from on-premises storage
  to Cloud Storage. It is optimized for large-scale transfers involving terabytes or petabytes of data.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-cloud-transfer-service.png
url: https://raw.githubusercontent.com/api-evangelist/google-cloud-transfer-service/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.18'
tags:
- Azure
- Cloud Storage
- Data Transfer
- Migration
- S3
- Storage
apis:
- aid: google-cloud-transfer-service:google-cloud-transfer-service-agentpools-api
  name: Google Cloud Transfer Service AgentPools API
  description: Operations for managing on-premises transfer agent pools
  humanURL: https://cloud.google.com/storage-transfer/docs
  baseURL: https://storagetransfer.googleapis.com
  tags:
  - AgentPools
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-transfer-service-agentpools-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage-transfer/docs/reference/rest
  - type: JSONSchema
    url: json-schema/google-cloud-transfer-service-job-schema.json
- aid: google-cloud-transfer-service:google-cloud-transfer-service-transferjobs-api
  name: Google Cloud Transfer Service TransferJobs API
  description: Operations for managing transfer jobs
  humanURL: https://cloud.google.com/storage-transfer/docs
  baseURL: https://storagetransfer.googleapis.com
  tags:
  - TransferJobs
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-transfer-service-transferjobs-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage-transfer/docs/reference/rest
  - type: JSONSchema
    url: json-schema/google-cloud-transfer-service-job-schema.json
- aid: google-cloud-transfer-service:google-cloud-transfer-service-transferoperations-api
  name: Google Cloud Transfer Service TransferOperations API
  description: Operations for monitoring transfer operations
  humanURL: https://cloud.google.com/storage-transfer/docs
  baseURL: https://storagetransfer.googleapis.com
  tags:
  - TransferOperations
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-transfer-service-transferoperations-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage-transfer/docs/reference/rest
  - type: JSONSchema
    url: json-schema/google-cloud-transfer-service-job-schema.json
common:
- type: AgenticAccess
  url: agentic-access/google-cloud-transfer-service-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-cloud-transfer-service-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-cloud-transfer-service-domain-security.yml
- type: Authentication
  url: authentication/google-cloud-transfer-service-authentication.yml
- type: OAuthScopes
  url: scopes/google-cloud-transfer-service-scopes.yml
- type: GitHubOrganization
  url: https://github.com/googleapis
- type: GettingStarted
  url: https://cloud.google.com/storage-transfer/docs/create-transfers
- type: Pricing
  url: https://cloud.google.com/storage-transfer/pricing
- type: JSONLD
  url: json-ld/google-cloud-transfer-service-context.jsonld
- type: Integrations
  url: https://cloud.google.com/marketplace
- url: https://docs.cloud.google.com/feeds/storagetransfer-release-notes.xml
  type: Blog
integrations:
- name: Become a Partner
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Google Cloud Transfer Service

Kin Score

APIs 3

Google Cloud Transfer Service AgentPools API

Google Cloud Transfer Service TransferJobs API

Google Cloud Transfer Service TransferOperations API

Open Collections 1

Google Cloud Transfer Service Google Storage Transfer API

Pricing Plans 1

Google Cloud Transfer Service Plans Pricing

Rate Limits 1

Google Cloud Transfer Service Rate Limits

FinOps 1

Google Cloud Transfer Service Finops

Semantic Vocabularies 1

Google Cloud Transfer Service Context

Spectral Rules 1

Google Cloud Transfer Service API Rules

JSON Schema 1

Google Cloud Storage Transfer Job

Security Posture 3

Google Cloud Transfer Service Authentication

Google Cloud Transfer Service Domain Security

Google Cloud Transfer Service Vulnerability Disclosure